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Online since: February 2014
Authors: Raquel da Cunha Ribeiro da Silva, Carlos T. Salinas, Kamal A.R. Ismail
The modeling process was validated by comparison with available experimental data.
Recently Barzanoni et al. [8] proposed in study, dimensionless correlations based on previous experimental data and reported empirical correlations of others for frost properties are proposed.
Numerical simulations and comparisons with available experimental data were made.
Also, the effect of the other parameter as humidity, surface temperature and velocity were numerical predicted and compared with experimental data.
The numerical results obtained seem to be coherent and presents a good agreement with experimental data.
Online since: November 2017
Authors: Mykola Trehub, Kseniia Tiukhmenova, Kostiantyn Kravchenko
However, the use of these mechanisms needs to ensure the credibility of achieving a reduction in greenhouse gas emissions.
This methodology for estimating greenhouse gas emission reductions during the rehabilitation of the building was developed and based on data on the physical processes of heat exchange and transformation of heat flows in the enclosure structures of houses and in heat consumption systems, taking into account regulatory requirements for structures and engineering systems, as well as the methods of their calculations.
Summarized and justified three possible types of errors that influence the correct data of energy efficiency.
References [1] Based on data of State Agency on energy efficiency and energy saving http://saee.gov.ua/uk/ae (assessed 24.10.2017)
[9] Methodology of estimation greenhouse gas emission reductions after building reconstruction [Valid from 12.07.2010].
Online since: August 2013
Authors: Fu Pu Li, Zhi Jun Wang, Fei Chen, Er Hu Yan
It can be seen that the rutting factor undergoes significant attenuation as the speed reduction, which has declined by 24% to 66% and 78% to 91% under 32km/h, 8km/h compared with that of 80km/h, respectively.
The preceding analysis reveals that the long sustained slope sections usually suffer frequent rutting failure, manifested principally in speed reduction and horizontal loading increase.
Moreover, the altitude has certain impact on the climbing performance of trucks due to higher altitude will result in the reduction in the engine power, affecting the speed of vehicles. ④The increase in traffic volume will affect the traffic capacity in the long sustained slope sections, and thus will affect the running speed. 3) Developing truck speed prediction model Mathematical statistics was performed for the observed speed data, and calculate the speed value under different percentages, which shall be compared to the corresponding theoretical results and correct the theoretical calculations.
Afterwards, it should derive the basic parameters of speed prediction model based on the analysis of a large number of data, so as to establish a preliminary speed prediction model.
Based on the analysis of a large number of data, it has ultimately proposed the delimitation criterion for the long sustained slopes.
Online since: July 2015
Authors: Rauf S. Iskhakov, Evgeniy V. Eremin, Oksana Anatoljevna Li, Sergey Viktorovich Komogortsev, Lidia Aleksandrovna Chekanova
In this paper we have proposed a modified expression for the fitting M(T) data in Co-P powders with nanocorundum and nanodiamond precipitates.
The obtained Bloch constant is in good agreement with literature data.
Fitting the experimental data with the Bloch’s T 3/2 law allows one to calculate the exchange interaction constant of the material [2–7].
Experimental M(T) data for the samples I and II were fitted by Eq.4.
Iskhakov, Analysis of phase composition of Co-P alloy powders using magnetometric data, Phys.
Online since: April 2010
Authors: James D. Scofield, Bang Hung Tsao, Jacob W. Lawson, Javier Francisco Baca
One possible mechanism for the improved ohmic contact behavior is that the addition of Au and Ti resulted in a reduction barrier height.
Figure 2 shows pre-anneal X-ray mapping images (8 hour acquisitions, including drift correction), a TEM micrograph, and EDX chemical analysis data for the Ti/AlNi/Au sample.
Comparing the two sets of EDX data, it appears that Au has diffused toward the substrate, while the AlNi layer seems displaced 'upward'.
This reduction in barrier height was explained using a model with an enhanced electrical field at the interface due to the small size of the Au particles and the large difference in barrier heights between Ti and Au on SiC [6].
Bob Wheeler of UES, Inc. for TEM assistance, Tom Boenlin and Victor McNier of UDRI for data acquisition system development, Dr.
Online since: November 2016
Authors: Nikita Stepanov, Sergey Zherebtsov, Nikita Yurchenko, Margarita Klimova, Gennady Salishchev, Dmitry Shaysultanov
The alloy was rolled at room and cryogenic temperatures, and uniaxially compressed at room temperature and temperatures of 600-1100°C with different height reductions.
Extensive refinement of the microstructure occurs as the result of rolling with reduction of 80%.
The compression was performed to height reduction of 75% corresponding to true strain of ≈1.4.
At least 10 measurements per each data point were performed.
Rolling to 80% reduction at room temperature after forging increases yield strength to 1320 MPa but decreases ductility to 13%.
Online since: August 2013
Authors: Li Tao Han, Jin Yun Guo, Qiao Li Kong
Therefore, DORIS can be used to precisely track LEO and collect abundant tracking data.
According to the equation of satellite motion and a variety of dynamic models acting on the satellite, the real-time orbit of the satellite can be estimated using the tracked data.
The observation noise is 0.3mm/s when we simulate DORIS tracking data for HY-2 satellite.
There are only 14 ground beacons in scheme 1, therefore the data coverage is very low, and the accuracy of orbit determination is low compared with other schemes.
In scheme 2, the data coverage is improved in some degree, and the accuracies are improved by -0.2mm, -1.3mm and 0.7mm on R, T and N directions respectively compared with scheme 1.
Online since: July 2015
Authors: Usman Tasiu Abdurrahman, Muhammad Tajuri Ahmed, Amina Sallau Aliyu, Muttaqa Uba Zango, Ali Sani Maihula, Mahadi Lawan Yakubu
The use of GPS in the hydrographic survey is known to speedup data acquisition, and improve its accuracy and efficiency [16].
In addition, it also made data processing much easier.
The total station was used to capture additional data from the offshore area and also verified the existing benchmarks and established necessary control points.
The data obtained was downloaded into a computer and processed using CivilCAD®.
Regression analysis was performed to estimate the effect of sediment incursion into the reservoirs based on the data presented on Table 5.
Online since: February 2018
Authors: Xian Zheng Gong, Xian Ce Meng, Qi Qi Zhang
Data Source.
The data of this study mainly come from the published literatures and the production process investigations of Chinese representative graphite enterprises.
The data source of auxiliary materials production are shown in Table 1.
Table 1 Data source of auxiliary materials production.
These emission data are estimated according to the related literatures [15,16].
Online since: March 2014
Authors: B. Narayanamoorthy, S. Balaji
The average Pt particle size was found to be less than 15 nm which is calculated from XRD data.
Table 1 Comparison of EIS data for Nafion: PEG nanocomposite film at different composition in with pure Nafion film.
RHE and the Pt-O(H) formation and reduction were observed at 0.7 V and 0.6 V respectively.
Balaji, Improved oxygen reduction reaction catalyzed by pt/clay/Nafion nanocomposite for PEM fuel cells, ACS Appl.
Watanabe, Oxygen reduction at the Pt/carbon black-polyimide ionomer interface, J.
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